We don't have any real data to support it, but I'm a fan of the hypothesis that at least some people are answering this question with the survey's ultimate use

We don't have any real data to support it, but I'm a fan of the hypothesis that at least some people are answering this question with the survey's ultimate use in mind. Anyone know of any good research around that kind of validity issue? Add'l note about the data: folks who wanted fewer trees were spread fairly evenly across the city; they were slightly more likely to come from the Southeast, but it wasn't a big effect, and within any given district all the other relationships were still true.